- Don't unexpectedly show and focus the "reply to" field when composing a message
- Fixed a bug where sometimes toolbar buttons in the message view would affect another message than the one currently being displayed
- Changed the way the app switches to the next/previous message to avoid a bug that could lead to the toolbar disappearing
- Fall back to using IPv4 if connecting to a POP3 server using IPv6 fails
- SMTP: Stop treating all TLS errors as certificate error
- Added more (local) logging when creating and removing notifications
- Fixed a couple of rare crashes
